Closure for collapsible tubes



w. s. SILLCOCKS 7 1,914,584 CLOSURE FOR COLLAPSIBLE TUBES June 20,1933.-

Filed Jan. 24, 1931 dune 2'9, 1%33 WARREN S. SIL'LCOCKS, 0F EQEHE'OUTHBEACH, NEW JERSEY, ASSIGNOR, ZBY MESNE ASSIGNMAETTS, TO LUSTEROIDCGNTAIEEB CDZJIZPANY, 1318., 01 ZJIAPLEW'GQD, NEW JERSEY, ACGE-EfiBATIOH 01 NEW JERSEY CLCSUELE FOE GOLLAPSIEILE TUBES Applicationfilled .l'anuary 2t, 1931. Serial No. 516,351

This invention relates to an improved 16, the inner surface of whichprovides a closure for collapsible tubes and while it is adapted for useon collapsible tubes of metal it is particularly adapted for use oncollapsible tubes made of celluloid.

The celluloid tubes are more apt to crack under bending or indentationcaused by the known forms of clip. Clips are placed on the flattenedends of the' tubes and then either compressed tightly orfolded over andthen compressed. This latter is the form employed in this invention. Thefolds are -made closely to prevent leakage but the clip does not crackor break the celluloid and presents a positive closure without excessivethickness, Furthermore, when the tube is folded overas is sometimes doneto eject material the rounded edge of the fold in engagement with thebody of the celluloid tube does not crack or break the material of thetube.

The invention is illustrated in the accompanying drawing in which Figurel is a perspective view of a collapsible tube and a clip about-tobeassembled. Figure 2 is an enlarged section of the end f the tube and theclip after they are assembled and folded and the closure is complete.

The collapsible tube 10 is of the usu form and the wide end 11 ispressed together usually between the thumb and forefinger, for insertioninto the clip 12; The clip is made of soft sheet metal, usually tin, andis folded over to form a return bend 13 and two substantially parallelwalls 14 and 15. The wall 15 is about half as high as the wall 14. andthe return bend 13 is wide enough to receive the end 11 within the bend.When the parts are so assembled the clip with the end 11 is folded overto place a the wall 15 inside the wall 14. This brin s the return bendopposite the top edge of t e smooth face for the tube 10 and also arounded exterior to prevent injury to the fingers especially at the endsofthe clip.

It will also be noted that in the folding the material of the tube whiletightly rolled or folded engages substantially rounded sur-' faces andalso provides enough fold to make a leak-proof closure.

- I claim z A collapsible tube of celluloid with its flat end having theopposed walls in contact and a clip having one wall approximately twicethe height of the other and separated by a space to receive and contactwith the contacted walls of the tube whereby a single fold of the clipembeds the edge of the. higher wall intothe bottom of the U-shaped bendof the tube and presents a rounded top surface for rolling on the tubeto prevent laterally cracking of the celluloid and allow'the naturalresiliency of the material to function. v

In testimony whereof he afiixes his signature.

WARREN S. SILLCOGKS.

wall 14 and presents a rounded surface to the outside of the tube. Incase the clip is turned over to eject material this rounded face engagesthe cellu-.

loid or other material of which the tube is made and does not crack orpuncture it.

In the bending or folding of the clip the wall 14 is folded over whichforms a-trough

